Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Patent
1996-02-20
1998-03-03
Griffin, Walter D.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
502103, 502115, 502134, 502119, 502156, B01J 460
Patent
active
057234000
ABSTRACT:
Process for the preparation of a solid catalyst component for olefins polymerization including (1) a magnesium halide in active form, (2) a titanium compound, and (3) an electron-donor compound selected from particular 1,3-diethers, the process being carried out by reaction between the compounds from (1) to (3), and including at least two additions of electron-donor (3) in the following order:
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Process for the preparation of a solid catalyst component for olefins polymerization including (1) a magnesium halide in active form, (2) a titanium compound, and (3) an electron-donor compound selected from particular 1,3-diethers, the process being carried out by reaction between the compounds from (1) to (3), and including at least two additions of electron-donor (3) in the following order:
a) one addition prior to or during a reaction with the titanium compound or with a halogenated compound, and then
b) one addition prior to or during a further reaction with the titanium compound.
Albizzati Enrico
Balbontin Giulio
Baruzzi Giovanni
Cristofori Antonio
Morini Giampiero
Griffin Walter D.
Montell North America Inc.
Preisch Nadine
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